Disk plow.



EL FOWLBR.

DISK PLOW.

APPLIOATION FILED MAY 28, 1904. 952,895 PatenteaMar.22,191o.

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E. PWLER.

Y msx PLOW.

A APPLIATION FILED MAY 28, 1904. 952,895, Patented Ma1x22, 1910.

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DISK PLOW.

APPLIUATION FILED MAY 28, 1'904s Patented Ma1122, 1910.,

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(5l/@Hummm ANDREW B GRAHAM co. PnoToYLlwoswAPnzis. wAsnlnGroN nc lrrrnnrEDWARD FOWLER, OF CEDAR GROVE, GEORGIA, ASSIGNOR OF ONESIXTH TO OTY T.SIMMONS, ONE-SIXTH TO JESSE L. SIMMONS, AND ONE-SIXTII TO BYRON V. KELL,

ALL OF CEDAR GROVE, GEORGIA.

DISK PLOW.

Specication of Letters Patent.

Patented Mar. 22, 1910.

To all whom t may concern:

Be it known that I, EDWARD FowLnR, a citizen of the United States,residing at Cedar Grove, in the county of Valker and State of Georgia,have invented new and useful Improvements in Disk Plows, of which thefollowing is a specification.

This invention relat-es to plows, more especially to that class whichuse disks in place of plowshares for turning over the ground, and whichmay also be converted from single to gang plows.

One obj ect of my invention is to simplify the construction of the frameand the means for attaching supplement-ary beams to the main beam,whereby the drag of the plowing disks is divided equally on oppositesides of the line of draft, thus doing away with the more or lesscomplicated and intricate devices to which the draft animals areattached.

Another object of my invention relates to the means for locking theswiveled or rear furrow wheel against swinging movement in one directiononly, and to devices for operating said locking means at the will of thedriver.

A further obj ect of invention resides in the scrapers for cleaning theplowing disks from adhering earth and causing the ground, raised by thedisk or disks, to be completely turned so that any grass, stumps ofprevious growth and other refuse matter will be entirely covered.

Other objects of invention not above enumerated but which consist ofnovel features of construction, combination and arrangement of elementswill be hereinafter described and claimed.

In the accompanying drawings z-Figure l represents a side elevation ofmy improved disk plow arranged as a gang plow viewed from the furrowside. Fig. 2 is a plan view of the same with the disk Scrapers removed.Fig. 8 is a view of the furrow side of my invention adjusted to plow asingle furrow. Fig. 4 represents the same as viewed in plan without thedisk scraper. Fig. 5 is a perspective land side view of a portion of theplow shown in Fig. 3. Fig. 6 is a perspective view of the adjustingmechanism for the forward furrow wheel. Fig. 7 is a perspective view ofone of the disks and its scraper. Fig. 8 is a plan view partly insection of the land side wheel, its adjusting mechanism and a portion ofthe main frame in section. Fig. 9 is an enlarged cross sectional view onthe line a--a, of Fig. 8. Fig. 10 represents a sectional view through aplowing disk and its scraper on the line b-b of Fig. 7. Figs. 11 and 12are det-ail views of the scraper.

Similar numerals indicate the same parts in all the figures.

Referring first to Figs. l and 2, the main beam, shown at l, carries thedraft connections 2 and the primary plowing disk 3. Secondary beams 4and 5 are bolted to the main beam on opposite sides thereof and carrythe respective disks 6 and 7. The main beam l, made in the peculiar formshown in Fig. 2 comprises a straight portion ll in the line of draft, aportion l deflected toward the land side, and a portion lc turned at aright angle to the portion 1b toward the furrow-side. To the end of theportion l, a bracket 8 is secured in which the pivot 9 of a plowing disk3 is screwed or otherwise fastened. The secondary beam 4 is bolted tothe furrow-side of the straight portion la of the main beam just beforeit turns to form the portion lb. It extends rearwardly a short distanceand is then bent to lie parallel to the portion lC of said main beam. Abracket 10 similar to the bracket 8 is carried by the end of the beam 4for the bearing pin 1l of a plowing disk 6. The secondary beam 5 is ofright angular shape, one arm of which isin line with and bolted on theland side of the portion lb near its end, while its other arm liesparallel to the portion lc of the main beam and, like it, is providedwith a bracket l2 supporting the bolt 13 of a plowing disk 7.

The manner of connecting the secondary beams 4 and 5 to the main beam lis clearly represented in Figs. 8 and 9. As there shown, narrowseparating blocks 29 are placed between the main and each vsecondarybeam, through which parts a bolt 30 is passed and secured by means of awasher and nut as shown. The separating blocks 29 are widened above andbelow the beams to form shoulders against which said beams bear, thelatter being made of I or other well known commercial shape of bar. Thebolt holes 31 in the secondary beams are elongated somewhat to permit ofadj ust-ment.

The beams and plowing disks are supported on three wheels 14, 15, and16. rlhe wheel 14 is the forward furrow wheel and travels in the furrowpreviously turned by the plowing disk 7. 15 is the rear furrow wheelwhich is swiveled to the frame and runs in the furrow turned by the disk3 when the plow is at work. rlhe wheel 16 moves over the unplowedground. The furrow wheel 14 is mounted on the straight portion 1a of themain beam, and is adapted to be placed in one of two positions thereon,its position depending on whether one or more disks are in use. The mainbeam 1 is vertically adjustable on the furrow wheel 14, the meanstherefor and for securing the furrow wheel to the beam will now bedescribed.

A bracket plate 17 bolted to the mainv beam 1 projects toward theland-side fora short distance, its upper surface being substantiallyhorizontal. F astened to the upper surface of said bracket, crosswise ofthe main beam, by means of yoke staples 18, is a bar 19, preferablysquare in cross sect-ion to which is attached on its furrow-side end abracket 20, having a vertically disposed sleeve 21 perforated by a hole22-see Fig. 6. The bar 19 may be linearly adjusted, or entirely removedfrom the bracket plate 17 by loosening the yoke staples 18. Through thevertical hole 22 in the sleeve 21 is passed an L-shaped standard 23,preferably square, its lower horizontal portion 24 carries the furrowwheel 14, while to its upper end above the sleeve 21 is fastened a capor socket 25 having a notched latch plate 26. A rearn wardly extendingoperating lever 27, having a latch to engage the notched plate 26, ispivoted to the cap 25, the short arm of said lever, forward of itspivot, being connected to the socket 21 by means of link bars 28. Whenthe lever is raised and lowered, the main beam through the medium of thebar 19 is depressed or elevated.

Bolted to the secondary beam 5 immediately behind the plow-disk 7 is acasting 32, forming a part of the plow frame which casting extendsbeyond the outer edge of the plowing-disk and terminates in a verticalsocket 33 which forms a bearing for i the arm 34 carrying the swivelingor caster wheel 15. The journal end of the arm 34 passes through andbelow the socket 33 and has formed therein a number of vertically placedholes 35 for a pin 3G by means of which the rear of the plow may beraised or lowered. 37 indicates the drivers seat and 38 the seat postbolted to the casting 32 as shown most clearly in Fig. 5. A foot rest 39is pivoted at its center on the seat post, from one end of which footrest a link 40 extends to a hook-shaped latch 41, pivoted to the army34. Normally, the hookshaped latch 41 engages the casting 32-see Figs.1 and 2-in such manner that the rear t`urrow-wheel 15 is prevented fromturning to the right, but its movement to the left is unrestrained. Thisarrangement tends to hold the plow in a straight line, but when the endsof the furrows are reached the furrow wheel 15 swings freely to the leftthereby enabling the plow to make a short turn in the same direction andstart a new series of furrows. rlhe furrow wheel 15 pressing the footlever on the left of its pivot, raising the hook-shaped latch 41 fromits connection with the casting and free the furrow wheel. Thehook-shaped latch 41 has an upward projection 42 on its pivotal end,perforated as indicated in Fig. 5, through one or the other of whichperforations the pivot bolt 42a is inserted when the arm 34 is raised orlowered to compensate for the changed position of the parts by suchmovement.

The land wheel 1G is mounted on one end of a doubly bent axle 43comprising two parallel portions extending in opposite directions andconnected by an intern'iediate section as shown in several figures,particularly in Fig. 8, where it will be seen that the outer portionforms the axle for the land wheel while the inner portion is journaledin a bracket 44 bolted to the main frame 1 and held thereon by a nut 45.A curved latch plate 4() is formed on the outer end of the bracket 44beyond which is a sleeve 47, independent of the latch plate, throughwhich the axle 43 passes, said sleeve having an operating lever 48 andan arm 49 in which latter is seated the intermediate portion of the axle43 connected thereto by a yoke bolt 50. A movement of the lever 48 willcause the axle 43 to rock in its bearing and change the height of theplow frame with respect to the land wheel 16. The operatingl lever 48carries a latch 51 which engages the latch plate 4G and holds the plowframe in position after its adjustment.

The plowing disks 3, 6 and 7 are of the usual concave-convex form withtheir axes I placed at angles to the horizon and the line of draft. Forthe purpose of keeping the concave surfaces of the disks clean, they areeach provided with an adjustable scraper 52 such as represented in Figs.1 and 7. Atlixed to each beam behind the plowing disk is a bracket 53,to which is bolted an arm 54 that extends over the top of the disk andends in a boss 55 and an upstanding plate From the back of the scraper52 a rod 57 reaches upwardly,through an eye bolt 58 by means of which itis fastened to the boss ln setting the scraper, it is pressed by hand asclosely as possible against may however be' turned to the right byV thedisk. Should the scraper not bear with sufficient force against thedisk, the pressure may be increased by means of a bolt 59 screwed in theupstanding plate 5G and bearing on the scraper rod 57.

So far as I am aware, disk plows have not been successfully used in sodland Owing to some defect or deficiency in the scraper which prevents itfrom turning the sod completely over as is necessary to produce the bestresults. To overcome this difficulty, I have constructed the novel formof scraper shown in the drawings, more especially in Figs. 7 and 107wherein it will be seen that Y the lower edge of the scraper 52, whichreaches from the pivot bolt of the plowing disk to its edge, is curvedto fit the inner surface of said plowing disk, its upper edge is longerand projects beyond the periphery of the disk, it also has a greatercurvature than the lower edge. The shape of the body of the scraper is amost important point and is clearly shown in Figs. 7 and 10 wherein itwill be seen that beginning at the pivot bolt, the curvature of thescraper is at first slight but it gradually increases toward the outercorner (see Fig. 10) in such manner that sod earth and earth coveredwith weeds and the remains of previous growths raised by the plowingdisk will ride up the scraper and, through its novel shape, becompletely inverted. The lower inner corner of the scraper which has aslight incurve, partly covers the pivot bolt and prevents the entranceofforeign matter to the bearing.

The plow hereinabove described consists of a gang plow with threeplowing disks. This number may, if desired, be increased or diminished.In Figs. 3, 4 and 5, a plow with a single disk is shown. Thisarrangement is produced by removing the secondary beams 4 and 5 withtheir plowing disks G and 7 and bolting the casting 32 and itsattachments to the portion 1c of the main beam 1. The furrow wheel 14,when used with three plowing disks, is so placed that it travels in thefurrow formed by the plowing disk '7 during its previous movement. Vhenthe change is made from a gang plow to a single plow, this furrow wheel14 would, if its position were not changed, extend too far to the rightto enter the previously formed furrow. To overcome this diiiiculty, thecasting 17 is disconnected from the beam 1 and moved rearwardly, itsfastening bolts passing through the holes in said beam through which thebolts 30 of the secondary beam 4 are passed when the latter beam isused. The yoke staples 1S are also loosened and the bar 19 pushed towardthe casting 17 until the furrow wheel 14 enters the furrow previouslyformed by the disk 3. This adjustment gives a compact and easilyoperated plow accomplished by operating the levers 27 and 48 in wellknown manner. At the rear end it will only be necessary to remove thebolt 36 and raise the arm 34 to the position desired and return the bolt36 into one of the other holes 35. The pivot of the latch 41 must alsobe changed to compensate for this raising of the arm 34, which isquickly done by withdrawing its pivot 42, dropping the latch 41, andplacing the pivot in one of the other holes in the projection 42.

I do not claim broadly the idea of mounting the scraper upon a pivotedarm; the advantage of the means which I disclose for supporting thescraper arises from the location of the pivot in a plane that issubstantially horizontal and also substantially parallel to the plane ofthe disk so that as the bar swings, the scraper is moved bodily towardthe disk and the curved edge of flat section continues to contact withthe disk; any change of parallelism between the worn edge and the faceof the disk being in the direction to present a sharper scraping edge tothe disk. The scraper is preferably located so that it extends fromabout the center of the disk to the periphery thereof and in order thatit may not be removed too remotely from this position, the scraper armis made longitudinally adjustable in the bolt which secures it so thatthe scraper can be located in the right place originally and theshortening which develops by continued wear of the edge may becompensated.

Having thus described the invention, what is claimed as new, is

1. In combination with the disk of a disk plow, a support therefor, abolt carried by said support in a substantially horizontal plane andalso in a plane substantially parallel with the plane of the disk, and ascraper having an arm secured by said bolt to the support and adapted tohave swinging adjustment on the bolt whereby to move the entire scrapingedge of said scraper to or from the face of said disk, said scraper armbeing adapted to have vertical adjustment through the means of said boltwhereby to move said scraping edge t0- ward the outer edge of said disk.

2. In combination with the disk of a disk plow, a support therefor, abolt carried by said support in a substantially horizontal plane andalso in a plane substantially parallel with the plane of the disk, ascraper having an arm secured by said bolt to the support and adapted tohave swinging adjustment on the bolt whereby to inove the entirescraping edge of said scraper to or from the face of said disk7 saidscraper arm being adapted to have vertical adjustment through the meansof said bolt whereby to move said'seraping edge toward the outer edge ofsaid disk, and a lug formed on the upper end of said disk support andprovided with a set screw adapted to impinge against the upper end ofsaid scraper arm,

Iwhereby to bring the scraping edge of the EDVARD F OVLER.

itnesses HOLBERT CATRON, VILLIAM T. FRAZIER.

